Once upon a time ( erase una vez, había una vez ...) a man tries to rob a bank in the middle of the night ( en mitad de la noche)
When the police tries to arrest him, the thief cuts his head with a blade.
A month later, when one of the policemen is sleeping , the thief appears in his dream, and he can't resist to cut his head too.
All the policemen finish cutting their heads.
22nd October 2012
PROPIEDAD DISTRIBUTIVA: la suma de dos sumandos, multiplicada por un número, es igual a la suma del producto de cada sumando por ese número.
http://www.azc.uam.mx/csh/sociologia/sigloxx/cronologiadelsigloxx.html Historia mundial
http://www.escolacristiana.org/xarsec_projectes/2000/cronologia.htm
21st October 2012
Once upon a time ( erase una vez, había una vez ...) a man tries to rob a bank in the middle of the night ( en mitad de la noche)
When the police tries to arrest him, the thief cuts his head with a blade.
A month later, when one of the policemen is sleeping , the thief appears in his dream, and he can't resist to cut his head too.
All the policemen finish cutting their heads.
22nd October 2012
PROPIEDAD DISTRIBUTIVA:
la suma de dos sumandos, multiplicada por un número, es igual a la suma del producto de cada sumando por ese número.
( b+c) a = (b.a) + (c.a) = ( 8+6) 4 = ( 8.4) + ( 6.4 )
14 . 4 = 32 + 24
56= 56
( b-c) a = (b.a) -( c.a) = ( 8 - 6) 4 = ( 8.4) - ( 6 . 4)
2.4 = 32 - 24
8 = 8